In a large bowl, combine dry baking mix, dry milk powder, walnuts, Splenda, and apple pie spice. Add water, vanilla extract, and egg white and mix well to combine. Using a 1/3-cup measure as a guide, pour batter onto a hot griddle or skillet sprayed with butter-flavored cooking spray to form 8 pancakes.

Cook over medium heat for 3 to 4 minutes on each side or until lightly browned and bubbles are popping. For each serving, place a pancake on a plate and top with about 1/4 cup applesauce mixture. Serve at once.